The app that helps locate local food anywhere in the United States and parts of Canada is waiving its price on April 22, and for the first time it’s being offered for the Android.

One of the first apps for the iPhone that I ever wrote about was the Locavore app. The original app had four features that identified foods that were in season in the local region and markets that might sell those foods. Since then the app has added a few features like recipes and the ability to post local foods you ate on Facebook.

This week, newer features will be added to the Locavore app, and on April 22, 2011, the app will be free to download for both Apple and Android platforms. Starting that day, Locavore will also start a 10-day contest where winners can win Amazon gift cards and eco-friendly grocery bags.

Here’s the lowdown on what’s old, what’s new, and what the contest is all about.

New

Now on Android, as of this week

Free on Earth Day, April 22nd (previously $2.99)

“Where to Buy” shows who has specific food

Expanded to cover Canada (April 22nd)

Old

Browse what’s in-season and soon to come

Locate farms and farmers’ markets nearest you

Find recipes for local, in-season items

Post “I ate local” to Facebook

Contest

During the “10 Days of Local”, 10 winners will be chosen each day to receive Amazon gift cards and eco-friendly grocery bags.

Download Locavore phone app, for free, starting April 22

Using Locavore, post “I ate local” to Locavore’s Facebook page

Tell someone about Locavore, using Facebook or Twitter

I’m hoping the “Where to Buy” function is accurate and up-to-date. It will be really great to find out when and exactly where I can find the first strawberries of the season or the first fresh broccoli.